Author Topic: storing memory in a cheap RGB led controller (Playing with 24C02N EEPROMs)  (Read 777 times)

0 Members and 1 Guest are viewing this topic.

Offline HerschelTopic starter

  • Regular Contributor
  • *
  • Posts: 54
  • Country: in
Sooo I have bought a cheap RGB led controller(image 1). so the problem is, its working fine... but it can't store the settings i have made, that is, if I selected the "fade" mode, and if there is a power cut, the RGB controller just resets :-\ . So i decided to open it, and found a place for an 8 PIN smd which was not connected. So I did an image search and found out that IC to be a 24C02WP EEPROM. So I connected that ic and its working as expected. Anyway I decided to do the same thing on another, similar RGB controller, and this time i could only find a 24C02N and i used that. BUT, this time it didn't worked, i replaced it with a new one but still nothing :-\ . Are 24C02WP and 24C02N different in working, the datasheets seem to be same...

24C02N   :   https://ww1.microchip.com/downloads/en/DeviceDoc/doc0180.pdf
24C02WP :   https://pdf1.alldatasheet.com/datasheet-pdf/view/1424877/STMICROELECTRONICS/24C02WP.html

both are different manufacturers...
« Last Edit: June 04, 2024, 05:55:24 pm by Herschel »
 

Offline aliarifat794

  • Regular Contributor
  • *
  • !
  • Posts: 138
  • Country: bd
Typically, EEPROMs in the 24C02 family follow the I²C protocol and have standard pin configurations, but it's always good to cross-check the datasheets.
 

Offline HerschelTopic starter

  • Regular Contributor
  • *
  • Posts: 54
  • Country: in
both of them seems to be same... are these ICs prone to damage while soldering? I soldered these ICs to the board...
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf